/*!
 * Crypto-JS v1.1.0
 * http://code.google.com/p/crypto-js/
 * Copyright (c) 2009, Jeff Mott. All rights reserved.
 * http://code.google.com/p/crypto-js/wiki/License
 */
// (function(){

var base64map = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'

// Global Crypto object
// window.Crypto = {};
let Crypto = {}

// Crypto utilities
var util = (Crypto.util = {
  // Bit-wise rotate left
  rotl: function (n, b) {
    return (n << b) | (n >>> (32 - b))
  },

  // Bit-wise rotate right
  rotr: function (n, b) {
    return (n << (32 - b)) | (n >>> b)
  },

  // Swap big-endian to little-endian and vice versa
  endian: function (n) {
    // If number given, swap endian
    if (n.constructor == Number) {
      return (util.rotl(n, 8) & 0x00ff00ff) | (util.rotl(n, 24) & 0xff00ff00)
    }

    // Else, assume array and swap all items
    for (var i = 0; i < n.length; i++) n[i] = util.endian(n[i])
    return n
  },

  // Generate an array of any length of random bytes
  randomBytes: function (n) {
    for (var bytes = []; n > 0; n--) bytes.push(Math.floor(Math.random() * 256))
    return bytes
  },

  // Convert a string to a byte array
  stringToBytes: function (str) {
    var bytes = []
    for (var i = 0; i < str.length; i++) bytes.push(str.charCodeAt(i))
    return bytes
  },

  // Convert a byte array to a string
  bytesToString: function (bytes) {
    var str = []
    for (var i = 0; i < bytes.length; i++) str.push(String.fromCharCode(bytes[i]))
    return str.join('')
  },

  // Convert a string to big-endian 32-bit words
  stringToWords: function (str) {
    var words = []
    for (var c = 0, b = 0; c < str.length; c++, b += 8)
      words[b >>> 5] |= str.charCodeAt(c) << (24 - (b % 32))
    return words
  },

  // Convert a byte array to big-endian 32-bits words
  bytesToWords: function (bytes) {
    var words = []
    for (var i = 0, b = 0; i < bytes.length; i++, b += 8)
      words[b >>> 5] |= bytes[i] << (24 - (b % 32))
    return words
  },

  // Convert big-endian 32-bit words to a byte array
  wordsToBytes: function (words) {
    var bytes = []
    for (var b = 0; b < words.length * 32; b += 8)
      bytes.push((words[b >>> 5] >>> (24 - (b % 32))) & 0xff)
    return bytes
  },

  // Convert a byte array to a hex string
  bytesToHex: function (bytes) {
    var hex = []
    for (var i = 0; i < bytes.length; i++) {
      hex.push((bytes[i] >>> 4).toString(16))
      hex.push((bytes[i] & 0xf).toString(16))
    }
    return hex.join('')
  },

  // Convert a hex string to a byte array
  hexToBytes: function (hex) {
    var bytes = []
    for (var c = 0; c < hex.length; c += 2) bytes.push(parseInt(hex.substr(c, 2), 16))
    return bytes
  },

  // Convert a byte array to a base-64 string
  bytesToBase64: function (bytes) {
    // Use browser-native function if it exists
    // if (typeof btoa == "function") return btoa(util.bytesToString(bytes));

    var base64 = [],
      overflow

    for (var i = 0; i < bytes.length; i++) {
      switch (i % 3) {
        case 0:
          base64.push(base64map.charAt(bytes[i] >>> 2))
          overflow = (bytes[i] & 0x3) << 4
          break
        case 1:
          base64.push(base64map.charAt(overflow | (bytes[i] >>> 4)))
          overflow = (bytes[i] & 0xf) << 2
          break
        case 2:
          base64.push(base64map.charAt(overflow | (bytes[i] >>> 6)))
          base64.push(base64map.charAt(bytes[i] & 0x3f))
          overflow = -1
      }
    }

    // Encode overflow bits, if there are any
    if (overflow != undefined && overflow != -1) base64.push(base64map.charAt(overflow))

    // Add padding
    while (base64.length % 4 != 0) base64.push('=')

    return base64.join('')
  },

  // Convert a base-64 string to a byte array
  base64ToBytes: function (base64) {
    // Use browser-native function if it exists
    if (typeof atob == 'function') return util.stringToBytes(atob(base64))

    // Remove non-base-64 characters
    base64 = base64.replace(/[^A-Z0-9+\/]/gi, '')

    var bytes = []

    for (var i = 0; i < base64.length; i++) {
      switch (i % 4) {
        case 1:
          bytes.push(
            (base64map.indexOf(base64.charAt(i - 1)) << 2) |
              (base64map.indexOf(base64.charAt(i)) >>> 4)
          )
          break
        case 2:
          bytes.push(
            ((base64map.indexOf(base64.charAt(i - 1)) & 0xf) << 4) |
              (base64map.indexOf(base64.charAt(i)) >>> 2)
          )
          break
        case 3:
          bytes.push(
            ((base64map.indexOf(base64.charAt(i - 1)) & 0x3) << 6) |
              base64map.indexOf(base64.charAt(i))
          )
          break
      }
    }

    return bytes
  },
})

// Crypto mode namespace
Crypto.mode = {}

// })();

export default Crypto
